It's party time!

Well, not for me exactly -- I will be spending the afternoon up at school helping out with the girls' Valentine's Day parties.

Here's today's brain bender to keep you busy while I am gone:

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Charlie is twice as old as David. When Charlie is 72, he will be the sum of his age and David's age now. How old are they now?

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Okay, answer to follow in the comments. Remember to smooch your sweetie today!

Update: Today's official smartypants is Cal Tech Girl from Not Exactly Rocket Science! (Just by a minute...) Whoohoo!